COMMUTATION ANGLE ANALYSIS OF A DOUBLE OUTPUT INDUCTION GENERATOR OPERATING IN SUB-SYNCHRONOUS AND SUPER-SYNCHRONOUS MODES

1994-04-14
CADIRCI, I
ERMIS, M
A rigourous performance analysis of the double autpt indoction generator system with two controlled convaters hs been carried out including the effects of both the rotor side amvukr’s commutation an& and harmonics as well as the supply side converter’s harmonics. This is achieved by means of the hybrid induction machine model which allows for the changing states of conduction of the rotor side converter’s thyristors. The variations in overlapping angle of the rotor side convertex is obtained for a wide range of shaft speeds and for various firing delay angles.

Suggestions

Comparison of Matrix Converter Induction Motor Drive Control Methods
Lettl, Jiri; Kuzmanovic, Dragan; Fligl, Stanislav (2011-09-10)
In this paper, the implementation of the Field Oriented Control and the Direct Torque Control in matrix converter supplied induction motor drives is analysed, and compared with the implementation in drives supplied by the Voltage Source Inverter. The analysis is accompanied by the results of numerical simulations and experimental implementations of these two control methods.
Higher Order Rotor Slot Harmonics for Rotor Speed & Position Estimation
Keysan, Ozan; Ertan, Hulusi Bülent (2010-05-21)
Air-gap flux of all electrical machines contains harmonics. Some of these harmonics stem from rotor slotting of the machine. These harmonics can be utilized for control or diagnostic purposes. In the literature, rotor slot harmonics are mostly utilized for condition monitoring. There is also some research utilizing them for rotor speed estimation. However, it is observed that in the existing work spectral analysis techniques are employed which require long samples of data and in this from they are not suita...
STARTING TRANSIENTS IN SLIP ENERGY RECOVERY INDUCTION-MOTOR DRIVES .1. FORMULATION AND MODELING
AKPINAR, E; PILLAY, P; Ersak, Aydın (1992-03-01)
A detailed study of the rotor phenomena including the rectifier commutation angle and inverter harmonics is facilitated by the use of the actual rotor conduction sequence variables instead of transformed variables that are used in most other IM drive systems. The starting transients of slip energy recovery IM drives comprising three stages are presented here; (a) the starting from zero speed with a starting resistor connected to the output of the rotor rectifier; (b) a transition period in which the invert...
PWM inverter harmonics contributions to the inverter-fed induction machine bearing fault diagnosis
Akin, Bilal; Toliyat, Hamid A.; Orguner, Umut; Rayner, Mark (2007-03-01)
The effects of inverter harmonics on motor current fault signatures are studied in detail in this paper. According to theory and experimentation, the fault signatures caused by the inverter harmonics are similar and comparable to those generated by the fundamental harmonic of the line current. Unlike the utility-driven motor, monitoring the current of the inverter-fed motor is considerably noisy, which can mask the fault signatures and render a wrong fault warning. Therefore, the proposed additional fault d...
Low order PWM inverter harmonics contributions to the inverter-fed induction machine fault diagnosis
Akin, Bilal; Orguner, Umut; Toliyat, Hamid A.; Rayner, Mark (Institute of Electrical and Electronics Engineers (IEEE), 2008-02-01)
In this paper, the effects of inverter harmonies on motor current fault signatures are studied in detail. It is theoretically and experimentally shown that the fault signatures caused by the inverter harmonies are similar and comparable to those generated by the fundamental harmonic on the line current. Theoretically-derived extended relations including bearing fault, eccentricity, and broken rotor bar relations are found to match experimental results. Furthermore, it is observed and reported that the asymm...
Citation Formats
I. CADIRCI and M. ERMIS, “COMMUTATION ANGLE ANALYSIS OF A DOUBLE OUTPUT INDUCTION GENERATOR OPERATING IN SUB-SYNCHRONOUS AND SUPER-SYNCHRONOUS MODES,” 1994, p. 793, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65543.